The Wadden Sea World Heritage site is being affected by climate change. The extent, however, is as yet unclear.

The Expert Group Seals (EG-Seals) of the Trilateral Wadden Sea Cooperation estimates a total of 40,800 harbour seals in their newly published 2019 harbour seal report.

In 2018-2019, 6,538 individuals were counted in the Danish-Dutch-German Wadden Sea and Helgoland.

A new analysis of the large scale bird count in 33 countries along the East Atlantic Flyway indicates that a large number of bird species using the Wadden Sea are not doing well.

Only native whales in the Wadden Sea - the focus of an international symposium held on 11 April 2019 was on harbour porpoises and their role in this tidal ecosystem.

What are the impacts of marine litter on UNESCO World Heritage marine sites and what countermeasures can be taken to address the issue? To answer these questions, World Heritage marine managers and marine litter experts from 11 different nations joined forces.

The Trilateral Seal Expert Group (TSEG) published report “Aerial surveys of Harbour Seals in the Wadden Sea in 2018”.